Metals and Their Compounds: MCQ Test (25 questions)

Question 1 of 25

From a chemical point of view, vermilion is

Acalcium carbonate
Bpotassium nitrate
Cpotassium sulfide
DMercury || Sulphide

Question 2 of 25

Which is the second most abundant metal found in the Earth's crust?

AIron
Baluminum
Caunt
Dzinc

Question 3 of 25

Which of the following oxides shows both acidic and basic properties

Azinc oxide
Bcopper oxide
Cmagnesium oxide
Dcalcium oxide

Question 4 of 25

Lightning conductors are made of

AIron
Bcopper
Caluminum
Dsteel

Question 5 of 25

Which of the following is an ore of iron?

AHematite
BBauxite
CCinnabar
Dlimestone

Question 6 of 25

What is the popular name of 'washing soda'?

Acalcium carbonate
BMagnesium Carbonate
Csodium carbonate
Dpotassium carbonate

Question 7 of 25

Which of the following pairs is correctly matched?

ASilver Iodide Horn Silver
BSilver Chlorite Artificial Rain
CZinc Phosphide Rat Poison
DZinc sulfide Zinc sulfide

Question 8 of 25

Red Lead is

APtSO⁴
BPbO²
CPh³O⁴
DPbCO³

Question 9 of 25

Which one of the following is the chemical formula of gypsum, a constituent of cement?

ACa²SiO⁴
BCaSO⁴ 2H ²O
CCaO
DCaSO⁴ 3H ²O

Question 10 of 25

It is known as 'White Gold'.

Apetroleum
BPlatinum
Csilver
Dpure gold

Question 11 of 25

Which of the following is coated on the photographic plate?

ASilver Oxide
Bsilver bromide
CSilver Chloride
DSilver Iodide

Question 12 of 25

What is cadmium pollution associated with?

AMinamata disease
BBlack foot disease
Cdyslexia
DItai Itai

Question 13 of 25

Which of the following compounds is used in making fireproof cloth?

Asodium sulphate
BMagnesium Sulfate
Caluminum sulfate
Dferrous sulfate

Question 14 of 25

Although the amount of aluminium in the earth's crust is greater than that of iron, yet aluminium is more expensive than iron because

AAluminum is more commonly used than iron.
BAluminum forms more alloys than iron.
CThe demand for aluminum appliances is higher than that of iron appliances.
DMetallic methods of producing aluminum are more expensive than those for iron.

Question 15 of 25

The chemical formula of sodium aluminate is

ANaOH
BNa²AIF⁶
CNaAlO²
Dnone of these

Question 16 of 25

Which aluminum salt is commonly used to stop bleeding?

Aannium chloride
Baluminum nitrate
CAmmonium Sulphate
DPotash alum

Question 17 of 25

Why is silver nitrate usually stored in coloured bottles?

AIt gets oxidised in air
BIt vaporizes in white bottles
CIt explodes in sunlight
DIt decomposes in sunlight

Question 18 of 25

Who extracts mercury?

AFrom galena
Bfrom bauxite
CCinnabar
DFrom pyrolusite

Question 19 of 25

The chemical formula of washing soda is

ANa² SO⁴ 10H²O
BNaHCO³
CNa² CO³ 10H²O
DCa(OH)²

Question 20 of 25

Which of the following is the chemical name of common salt?

Acalcium carbonate
Bsodium carbonate
Csodium chloride
Dnone of these

Question 21 of 25

Bauxite ore is—

Aof iron
Bof aluminum
Ccopper
DOf gold

Question 22 of 25

When heated in air, vermilion gets converted into oxide of….

AMercury
BAntimony
CCopper
DCadmium

Question 23 of 25

Three factors are necessary for rusting to occur, which are

Ahelium hydrogen nitrogen
Biron, nitrogen and iron
Csteel, iron and oxygen
Diron, oxygen and moisture

Question 24 of 25

Which disease is caused by increase in the amount of copper metal in the human body?

ASiderosis
Banemia
Cesophagus
DWilson's disease

Question 25 of 25

Table salt becomes wet during the rainy season because

ASodium chloride is a hygroscopic
BSodium chloride is a diffusible substance
CSodium chloride contains some amount of sodium iodide.
DSodium chloride contains adhesive impurities like MgCI².